[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2008141804A3 - Anordnung zur abtastung eines linearen oder kreisförmigen massstabes aus ferromagnetischem material - Google Patents

Anordnung zur abtastung eines linearen oder kreisförmigen massstabes aus ferromagnetischem material Download PDF

Info

Publication number
WO2008141804A3
WO2008141804A3 PCT/EP2008/004047 EP2008004047W WO2008141804A3 WO 2008141804 A3 WO2008141804 A3 WO 2008141804A3 EP 2008004047 W EP2008004047 W EP 2008004047W WO 2008141804 A3 WO2008141804 A3 WO 2008141804A3
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
measuring rod
linear
field
scanning
Prior art date
Application number
PCT/EP2008/004047
Other languages
English (en)
French (fr)
Other versions
WO2008141804A2 (de
Inventor
Uwe Loreit
Joerg Traute
Jochen Schmitt
Original Assignee
Sensitec Gmbh
Uwe Loreit
Joerg Traute
Jochen Schmitt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sensitec Gmbh, Uwe Loreit, Joerg Traute, Jochen Schmitt filed Critical Sensitec Gmbh
Priority to EP08758654.1A priority Critical patent/EP2158453B1/de
Priority to US12/451,587 priority patent/US8836324B2/en
Publication of WO2008141804A2 publication Critical patent/WO2008141804A2/de
Publication of WO2008141804A3 publication Critical patent/WO2008141804A3/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/147—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2451—Incremental encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

Es wird eine Anordnung zur hochauflösenden Positionsbestimmung an linearen oder kreisförmigen ferromagnetischen Maßstäben (3) mit Zahnstruktur angegeben, die in magnetisch gestörter Umgebung zuverlässige Ergebnisse liefert. Dazu wird ein Magnetfeldsensor (1) am Ort des maximalen Feldes eines Dauermagneten (4) positioniert und dieser gegenüber dem Maßstab (3) so angebracht, dass das weichmagnetische Maßstabsmaterial eine weitere Feldverstärkung bewirkt. Die so erreichte Feldstärke ist ausreichend, um Vielschicht-GMR-Sensoren mit Widerstandsänderungen von mehr als 40 % einsetzen zu können, womit eine hohe Signalamplitude zur höheren Positionsauflösung genutzt werden kann.
PCT/EP2008/004047 2007-05-21 2008-05-20 Anordnung zur abtastung eines linearen oder kreisförmigen massstabes aus ferromagnetischem material WO2008141804A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08758654.1A EP2158453B1 (de) 2007-05-21 2008-05-20 Anordnung zur abtastung eines linearen oder kreisförmigen massstabes aus ferromagnetischem material
US12/451,587 US8836324B2 (en) 2007-05-21 2008-05-20 Arrangement for scanning a linear or circular measuring rod made of ferromagnetic material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007023815.2 2007-05-21
DE102007023815A DE102007023815A1 (de) 2007-05-21 2007-05-21 Anordnung zur Abtastung eines linearen oder kreisförmigen Maßstabes aus ferromagnetischem Material

Publications (2)

Publication Number Publication Date
WO2008141804A2 WO2008141804A2 (de) 2008-11-27
WO2008141804A3 true WO2008141804A3 (de) 2009-04-30

Family

ID=39877030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/004047 WO2008141804A2 (de) 2007-05-21 2008-05-20 Anordnung zur abtastung eines linearen oder kreisförmigen massstabes aus ferromagnetischem material

Country Status (4)

Country Link
US (1) US8836324B2 (de)
EP (1) EP2158453B1 (de)
DE (1) DE102007023815A1 (de)
WO (1) WO2008141804A2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9201125B2 (en) * 2010-10-08 2015-12-01 Muller Martini Holding Ag Device for the continuous quality control of applied elements
JP6103640B2 (ja) * 2013-07-16 2017-03-29 アルプス電気株式会社 位置検出装置
DE102015007190B4 (de) * 2015-06-09 2017-03-02 Micronas Gmbh Magnetfeldmessvorrichtung
US11408721B2 (en) * 2016-10-31 2022-08-09 Mitsubishi Electric Corporation Rotation angle detection device and rotation angle detection method
DE102017204879A1 (de) * 2017-03-23 2018-09-27 Robert Bosch Gmbh Linearwälzlager mit magnetoresistivem Positionsmesssystem
US10539432B2 (en) * 2018-01-29 2020-01-21 Infineon Technologies Ag Differential top-read magnetic sensor with low cost back bias magnet
EP3543656A1 (de) * 2018-03-24 2019-09-25 Melexis Technologies SA Unempfindlicher mehrpoliger magnet ausserhalb der achse und sensorsystem damit
DE102018210595A1 (de) 2018-06-28 2020-01-02 Infineon Technologies Ag Sensorvorrichtungen und Verfahren zur Herstellung von Sensorvorrichtungen
DE102019122360B4 (de) 2018-08-22 2024-02-01 Tdk Corporation Positionserfassungssystem
DE102018219072A1 (de) 2018-11-08 2020-05-14 Hiwin Mikrosystem Corp. Codierer mit gezahnter Struktur und Vorrichtung mit demselben
CN111912326A (zh) * 2019-05-07 2020-11-10 丁兆洋 磁栅尺设备、位置测量设备和位置测量方法
EP3795955B1 (de) 2019-09-23 2023-01-04 Melexis Technologies SA Magnetisches positionssensorsystem
JP6893267B1 (ja) 2020-03-10 2021-06-23 三菱電機株式会社 磁気検出装置
US11719772B2 (en) 2020-04-01 2023-08-08 Analog Devices International Unlimited Company AMR (XMR) sensor with increased linear range
DE102020126871A1 (de) * 2020-10-13 2022-04-14 Infineon Technologies Ag Ein Sensorsystem, ein System und ein Verfahren zum Bestimmen einer Position oder eines Drehwinkels

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815113A (ja) * 1981-07-22 1983-01-28 Hitachi Ltd 歯数計測装置
US20040095130A1 (en) * 2002-07-23 2004-05-20 Mitsubishi Denki Kabushiki Kaisha Magnetic detection apparatus
WO2005088259A1 (de) * 2004-03-11 2005-09-22 Robert Bosch Gmbh Magnetsensoranordnung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122376A1 (de) 1981-06-05 1982-12-23 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur erfassung der drehzahl von rotierenden teilen
DE3411773C2 (de) 1984-03-30 1987-02-12 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur Erfassung der Drehzahl und/oder eines Drehwinkels einer Welle
US4745363A (en) 1986-07-16 1988-05-17 North American Philips Corporation Non-oriented direct coupled gear tooth sensor using a Hall cell
US4859941A (en) 1987-03-18 1989-08-22 Sprague Electric Company Proximity selectro with integral magnet, pole-piece plate and pair of magnetic transducers
US5444370A (en) 1993-03-18 1995-08-22 Honeywell Inc. Magnetic angular position sensor with two magnetically sensitive components arranged proximate two target tracks having complimentary magnetic and nonmagnetic segments
JP3605880B2 (ja) 1995-05-12 2004-12-22 株式会社デンソー 非接触型回転センサ
AU6522896A (en) 1995-08-02 1997-03-05 Durakool Incorporated Gear tooth sensor with improved resolution and stability
US7506899B2 (en) 2003-03-20 2009-03-24 Rain Bird Corporation Multi-diameter tube fitting
US7425824B2 (en) 2005-05-20 2008-09-16 Honeywell International Inc. Magnetoresistive sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815113A (ja) * 1981-07-22 1983-01-28 Hitachi Ltd 歯数計測装置
US20040095130A1 (en) * 2002-07-23 2004-05-20 Mitsubishi Denki Kabushiki Kaisha Magnetic detection apparatus
WO2005088259A1 (de) * 2004-03-11 2005-09-22 Robert Bosch Gmbh Magnetsensoranordnung

Also Published As

Publication number Publication date
US20100134095A1 (en) 2010-06-03
DE102007023815A1 (de) 2008-11-27
US8836324B2 (en) 2014-09-16
EP2158453B1 (de) 2017-07-12
EP2158453A2 (de) 2010-03-03
WO2008141804A2 (de) 2008-11-27

Similar Documents

Publication Publication Date Title
WO2008141804A3 (de) Anordnung zur abtastung eines linearen oder kreisförmigen massstabes aus ferromagnetischem material
CN106019183B (zh) 磁传感器及磁性编码器
WO2007115857A3 (de) Gebervorrichtung für eine elektrische maschine
MX2008012198A (es) Codificador de posicion.
WO2010136164A3 (de) Verfahren und anordnung zur magnetischen positionsbestimmung
EP2221587A3 (de) Absoluter magnetischer Positionsgeber
MY153308A (en) Calibratable multidimensional magnetic point sensor
WO2009101270A3 (fr) Capteur de position magnetique angulaire ou lineaire presentant une insensibilite aux champs exterieurs
WO2008074317A3 (de) Verfahren und sensoranordnung zum bestimmen der position und/oder positionsänderung eines messobjekts relativ zu einem sensor
EP1720027A4 (de) Magnetfelddetektor und stromdetektionseinrichtung, positionsdetektionseinrichtung und rotationsdetektionseinrichtungen mit dem magnetfelddetektor
US8531181B2 (en) Magnetic linear sensor arrangement
WO2008094813A3 (en) Magnetic speed, direction, and/or movement extent sensor
WO2006109384A8 (ja) 位置検出器および位置決め装置
WO2008040659A3 (de) Verfahren zum betreiben eines magnetfeldsensors und zugehöriger magnetfeldsensor
TW200944761A (en) Origin position signal detector
EP1804031A3 (de) Magnetische Vorrichtung zur Detektion des Positionswinkels
WO2007148028A3 (fr) Procede et systeme pour ajuster la sensibilite d'un capteur magnetoresistif
EP1975637A3 (de) Sensor zur Detektion magnetischer Substanzen und Vorrichtung zur Detektion magnetischer Substanzen
EP1770371A3 (de) Capteur magnétique
JP2006153879A (ja) リニアポジションセンサ
CN106164621B (zh) 用于检测在运动的部件上的位移的传感器组件
JP3673413B2 (ja) パルス信号発生装置
CN105164539A (zh) 速度传感器
WO2015001097A1 (en) Solid borne sound wave phase delay comparison
US10502591B2 (en) Sensor arrangement and method for determining a position and/or a change in the position of a measurement object

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 12451587

Country of ref document: US

REEP Request for entry into the european phase

Ref document number: 2008758654

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2008758654

Country of ref document: EP